Greater Sudbury
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Feels like: 25.4°C (77.7°F)
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Greater Sudbury, Canada
Click any image to view larger versionPast Weather Alerts
5 of 67heat
A heat event continues. What: Maximum temperatures of 29 to 35 degrees Celsius. Minimum temperature...
heat
A heat event continues. What: Maximum temperatures of 32 to 37 degrees Celsius. Minimum temperature...
frost
Patchy frost is expected tonight as temperatures drop to near the freezing mark. ### Damage to pla...
frost
Patchy frost is expected early this morning as temperatures drop to near the freezing mark. ### Da...
frost
Widespread frost is no longer expected. ###
Past Weather Alerts for Greater Sudbury
heat
A heat event continues. What: Maximum temperatures of 29 to 35 degrees Celsius. Minimum temperatures of 19 to 23 degrees Celsius. Humidex values of 36 to 40. When: Continuing through this evening, and possibly into Wednesday for some areas. Additional information: Hot and humid air can also bring deteriorating air quality and can result in the Air Quality Health Index approaching the high-risk category. ### Heat warnings are issued when very high temperature or humidity conditions are expected to pose an elevated risk of heat illnesses, such as heat stroke or heat exhaustion. For more information: https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/how-protect-yourself.html https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/who-is-at-risk.html Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
heat
A heat event continues. What: Maximum temperatures of 32 to 37 degrees Celsius. Minimum temperatures of 19 to 23 degrees Celsius. Humidex values of 36 to 42. When: Continuing through Tuesday evening for most areas, and possibly into Wednesday. Additional information: Hot and humid air can also bring deteriorating air quality and can result in the Air Quality Health Index approaching the high-risk category. ### Heat warnings are issued when very high temperature or humidity conditions are expected to pose an elevated risk of heat illnesses, such as heat stroke or heat exhaustion. For more information: https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/how-protect-yourself.html https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/who-is-at-risk.html Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
frost
Patchy frost is expected tonight as temperatures drop to near the freezing mark. ### Damage to plants, trees, and crops is possible. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
frost
Patchy frost is expected early this morning as temperatures drop to near the freezing mark. ### Damage to plants, trees, and crops is possible. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
frost
Widespread frost is no longer expected. ###
weather
Heavy rainfall continues. The frozen or nearly saturated ground has a reduced ability to absorb this rainfall. What: Rainfall amounts of 15 to 25 mm. Locally higher amounts possible. When: Ending this afternoon. Additional information: Water may pool on roads and in low-lying areas. Don't drive through flooded roadways. Watch for washouts near rivers, creeks and culverts. For information concerning flooding, please consult your local Conservation Authority or Ontario Ministry of Natural Resources office. Visit Ontario.ca/floods for the latest details. ### Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
weather
Significant rainfall expected. The frozen or nearly saturated ground has a reduced ability to absorb this rainfall. What: Rainfall amounts of 15 to 25 mm. Locally higher amounts possible. When: This morning and diminishing this evening. Additional information: Confidence is low regarding rainfall amounts rainfall warnings may be issued for some regions. Water may pool on roads and in low-lying areas. Don't drive through flooded roadways. Watch for washouts near rivers, creeks and culverts. For information concerning flooding, please consult your local Conservation Authority or Ontario Ministry of Natural Resources office. Visit Ontario.ca/floods for the latest details. ### Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
freezing drizzle
Areas of freezing drizzle continue. What: Freezing drizzle with light ice build-up making surfaces icy and slippery. When: This morning. ### Icy surfaces will likely form and could be difficult to detect. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
freezing drizzle
Areas of freezing drizzle continue. What: Freezing drizzle with light ice build-up making surfaces icy and slippery. When: Ending this morning. ### Icy surfaces will likely form and could be difficult to detect. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
weather
Wintry weather continues. What: Total snowfall amounts of 5 to 12 cm. Reduced visibility in heavy snow. Risk of freezing drizzle. When: Snow ending overnight. Risk of freezing drizzle tonight. Additional information: Freezing drizzle may develop across the region as the snow moves out tonight. Roads and walkways may be difficult to navigate due to accumulating snow. Untreated roads may become icy and slippery. Motorists should allow extra time to get to their destination. ### Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
weather
Late season snowfall continues. What: Total snowfall amounts of 5 to 12 cm. Reduced visibility in heavy snow. When: Ending tonight. Additional information: Roads and walkways may be difficult to navigate due to accumulating snow. Motorists should allow extra time to get to their destination. ### Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
weather
Late season snowfall on tap. What: Total snowfall amounts of 5 to 12 cm. Reduced visibility in heavy snow. When: Beginning this afternoon then ending tonight. Additional information: Snow, briefly heavy at times will quickly spread east with an Alberta Clipper across the district. Precipitation may change briefly to ice pellets or freezing rain this evening. Roads and walkways may be difficult to navigate due to accumulating snow. Untreated roads may become icy and slippery. Motorists should allow extra time to get to their destination. ### Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
weather
Snow continues this morning What: Total snowfall amounts of 5 to 10 cm. Reduced visibility in heavy snow. When: This morning. Additional information: Roads and walkways may be difficult to navigate due to accumulating snow. ### Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
weather
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winter storm
Major winter storm expected. What: Total snowfall and ice pellet accumulations of 10 to 20 cm. Near zero visibility in heavy snow and blowing snow. 6 to 12 mm of ice build-up from freezing rain. Northeasterly wind gusts of 70 to 80 km/h. When: Sunday morning through Monday night. Additional information: A hazardous winter storm will begin affecting northeastern Ontario on Sunday. Precipitation is expected to begin as rapidly accumulating snowfall before transitioning to freezing rain or ice pellets Sunday night into Monday. Some regions may even see a warm up to rain on Monday afternoon. Travel on Highways 11 and 17 will be impacted. ### Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero at times. Road closures are possible. Prolonged utility outages are likely. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
winter storm
Freezing rain, snow and ice pellets tonight into Wednesday. What: Snow and ice pellet amounts of 10 to 15 cm. Several hours of freezing rain and ice pellets. Ice accretion or build-up of up to 4 mm. Local blowing snow. When: Beginning late tonight or Wednesday morning and continuing into Wednesday evening. Additional information: A wintry mix of snow, ice pellets and freezing rain is likely tonight into Wednesday. Precipitation should change to all snow with local blowing snow late Wednesday before tapering off Wednesday night. The track of the low pressure system is still somewhat uncertain. As a result, confidence is low regarding exact precipitation amounts and types. Regardless of the precipitation type, hazardous travel conditions are likely. ### Roads and walkways will likely be difficult to navigate. Travel will likely be challenging. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
winter storm
Potential for freezing rain, snow and ice pellets tonight into Wednesday. What: Snow and ice pellet amounts of 10 to 15 cm. Several hours of freezing rain and ice pellets. Ice accretion or build-up of up to 4 mm. Local blowing snow. When: Beginning late tonight or Wednesday morning and continuing into Wednesday night. Additional information: A wintry mix of snow, ice pellets and freezing rain is likely tonight into Wednesday. Precipitation should change to all snow with local blowing snow late Wednesday before tapering off Wednesday night. The track of the low pressure system is still somewhat uncertain. As a result, confidence is low regarding exact precipitation amounts and types. Regardless of the precipitation type, hazardous travel conditions are likely. ### Roads and walkways may be difficult to navigate. Some travel delays are possible. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
fog
Dense fog has developed and near zero visibility is expected in some locales. Visibility will improve late this evening. ### Travel will likely be hazardous. Visibility will likely be suddenly reduced at times. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
snow squall
Snow squalls are expected. Under the snow squall bands, visibility will be significantly reduced due to the heavy snow combined with blowing snow, and snow will quickly accumulate. Snow squalls this morning and early afternoon. What: Significantly reduced visibility in heavy snow and local blowing snow. Local snowfall amounts of 10 to 15 cm. When: This morning through early this afternoon. Additional information: Snow squalls to push southwards by early this afternoon as winds shift to westerly. ### Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero at times. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
snow squall
Snow squalls are no longer expected. ###
snow squall
Lake effect snow returns Tuesday afternoon. What: Snowfall amounts of 15 to 25 cm. Significantly reduced visibility in heavy snow and local blowing snow. When: Tuesday afternoon through Wednesday morning. Additional information: Lake effect snow off Georgian Bay will lift north into the area Tuesday afternoon and continue through Wednesday morning. In addition, westerly to southwesterly winds gusting to near 50 km/h will result in local blowing snow, particularly for locations near Georgian Bay. Widespread snow is expected to move in Wednesday morning in association with an Alberta Clipper. ### Travel may be hazardous. Visibility may be suddenly reduced to near zero at times. Roads and walkways may be difficult to navigate due to accumulating snow. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
snow squall
Snow squalls continue. What: Additional snowfall accumulations of 10 to 15 cm. Significantly reduced visibility in heavy snow and local blowing snow. When: Continuing through late this afternoon or early this evening. Additional information: Snow squalls will move south of the area later this afternoon or early this evening. The highest amounts are expected to be over southeastern Manitoulin Island to Killarney to Lake Nipissing. ### Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero at times. Roads and walkways will likely be difficult to navigate due to accumulating snow. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
snow squall
### Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero at times. Roads and walkways will likely be difficult to navigate due to accumulating snow. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
snow squall
Snow squalls continuing through early this evening. What: Local snowfall accumulations of 20 to 40 cm. Significantly reduced visibility in heavy snow and local blowing snow. When: Continuing through early this evening. Additional information: Snow squalls will move south out of the area this evening. ### Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero at times. Roads and walkways will likely be difficult to navigate due to accumulating snow. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
snow squall
Snow squalls expected. What: Local snowfall accumulations of 10 to 20 cm. Significantly reduced visibility in heavy snow and local blowing snow. When: Continuing into this morning. Additional information: The highest amounts are expected south of Highway 17. Snow squalls will move out of the area this morning. ### Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero at times. Roads and walkways will likely be difficult to navigate due to accumulating snow. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
snow squall
###
weather
A wintry mix expected tonight through Friday. What: Total rainfall amounts of 15 to 25 mm. Total snowfall amounts near 5 cm. Reduced visibility in heavy snow. When: Tonight through Friday. Additional information: A low pressure system is expected to bring a wintry mix of precipitation to the area beginning tonight. Rain is expected to begin tonight and transition to snow Friday afternoon. The frozen ground will have a limited ability to absorb the rainfall and snow melt. Localized flash flooding and water pooling on roadways may occur for areas with poor drainage. On Friday, temperatures will fall to below the freezing mark, any water on roadways and walkways will freeze, creating icy and slippery conditions. Uncertainty remains in the track and intensity of the low pressure system, as such rainfall and snowfall amounts may change. For information concerning flooding, please consult your local Conservation Authority or Ontario Ministry of Natural Resources office. Visit Ontario.ca/floods for the latest details. ### Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
fog
Dense fog is expected. What: Near zero visibility in dense fog. When: Early this morning. Additional Information: There could be some patchy freezing drizzle in addition to the fog that could make travel hazardous. ### Travel will likely be hazardous. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
winter storm
Significant winter storm continues tonight. What: Snowfall amounts of 10 to 20 cm. Northwesterly wind gusts of 60 to 70 km/h. Reduced visibility in heavy snow and blowing snow. When: Ending tonight. ### Travel may be hazardous. Visibility may be suddenly reduced to near zero at times. Road closures are possible. Prolonged utility outages are possible. Significant property or tree damage is possible. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
winter storm
### Roads and walkways will likely be very difficult to navigate. Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero at times. Road closures are possible. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
winter storm
Hazardous winter storm continues tonight through to Monday night. What: Snowfall amounts of 30 to 50 cm. Risk for freezing rain with minor ice accretion possible Northwesterly wind gusts of 60 to 70 km/h Blizzard conditions. When: Continuing into Monday night. Additional information: Freezing rain or ice pellets will continues this evening. Precipitation is expected to all change over to snow overnight. Some ice accretion is possible with any freezing rain that occurs. The strong northwesterly winds will pick up through Monday morning leading to blizzard conditions. The snow and winds will ease from west to east through Monday night. ### Roads and walkways will likely be very difficult to navigate. Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero at times. Road closures are possible. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
winter storm
Significant winter storm continues tonight to Monday night. What: Freezing rain with 10 to 15 mm of ice accretion. Snowfall amounts of 10 to 20 cm. Northwesterly wind gusts of 60 to 70 km/h. Reduced visibility in heavy snow and blowing snow. When: Tonight into Monday night. Additional information: Precipitation is expected to begin as freezing rain this evening and continue through the overnight hours. The freezing rain is expected to transition to snow through Monday morning. During the transition a period of ice pellets is possible. The strong northwesterly winds will pick up through Monday afternoon leading to reduced visibility from blowing snow and falling snow. ### Travel may be hazardous. Visibility may be suddenly reduced to near zero at times. Road closures are possible. Prolonged utility outages are possible. Significant property or tree damage is possible. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
winter storm
### Travel may be hazardous. Visibility may be suddenly reduced to near zero at times. Road closures are possible. Prolonged utility outages are possible. Significant property or tree damage is possible. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
winter storm
Significant winter storm expected this evening to Monday night. What: Freezing rain with 10 to 15 mm of ice accretion. Snowfall amounts of 10 to 20 cm. Northwesterly wind gusts of 60 to 70 km/h. Reduced visibility in heavy snow and blowing snow. When: Beginning this evening and continuing into Monday night. Additional information: Precipitation is expected to begin as freezing rain this evening and continue through the overnight hours. The freezing rain is expected to transition to snow through Monday morning. During the transition a period of ice pellets is possible. The strong northwesterly winds will pick up through Monday afternoon leading to reduced visibility from blowing snow and falling snow. ### Travel may be hazardous. Visibility may be suddenly reduced to near zero at times. Road closures are possible. Prolonged utility outages are possible. Significant property or tree damage is possible. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
winter storm
Hazardous winter storm expected tonight through to Monday night. What: Snowfall amounts of 30 to 50 cm. Risk for freezing rain with minor ice accretion possible Northwesterly wind gusts of 60 to 70 km/h Blizzard conditions. When: Beginning this evening and continuing into Monday night. Additional information: Precipitation may begin as freezing rain or ice pellets this evening. Precipitation is expected to all change over to snow overnight. Some ice accretion is possible with any freezing rain that occurs. The strong northwesterly winds will pick up through Monday morning leading to blizzard conditions. The snow and winds will ease from west to east through Monday night. ### Roads and walkways will likely be very difficult to navigate. Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero at times. Road closures are possible. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
winter storm
Significant winter storm expected this evening to Monday night. What: Freezing rain with 10 to 15 mm of ice accretion. Snowfall amounts of 10 to 20 cm. Northwesterly wind gusts of 60 to 70 km/h. Reduced visibility in heavy snow and blowing snow. When: Beginning this evening and continuing into Monday night. Additional information: Precipitation is expected to begin as freezing rain this evening and continue through the overnight hours. The freezing rain is expected to transition to snow through Monday morning. During the transition a period of ice pellets is possible. The strong northwesterly winds will pick up through Monday afternoon leading to reduced visibility from blowing snow and falling snow. ### Travel may be hazardous. Visibility may be suddenly reduced to near zero at times. Road closures are possible. Prolonged utility outages are possible. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
winter storm
Significant winter storm expected Sunday evening to Monday night. What: Freezing rain with 10 to 15 mm of ice accretion. Snowfall amounts of 10 to 20 cm. Northwesterly wind gusts of 60 to 70 km/h. Reduced visibility in heavy snow and blowing snow. When: Beginning Sunday evening and continuing into Monday night. Additional information: Precipitation is expected to begin as freezing rain Sunday evening and continuing through the overnight. The freezing rain is expected to transition to snow through Monday morning. During the transition a period of ice pellets is possible. The strong northwesterly winds will pick up through Monday afternoon leading to reduced visibility from blowing snow and falling snow. ### Travel may be hazardous. Visibility may be suddenly reduced to near zero at times. Road closures are possible. Prolonged utility outages are possible. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
winter storm
Significant winter storm expected Sunday evening to Monday night. What: Freezing rain with 10 to 20 mm of ice accretion. Snowfall amounts of 10 to 15 cm. Strong northwesterly winds with gusts of 60 to 70 km/h Reduced visibility in heavy snow and blowing snow. When: Beginning Sunday evening and continuing into Monday night. Additional information: Precipitation is expected to begin as freezing rain Sunday evening and continuing through the overnight. The freezing rain is expected to transition to snow through Monday morning. During the transition a brief period of ice pellets is possible. The strong northwesterly winds will pick up through Monday afternoon leading to reduced visibility from blowing snow and falling snow. ### Roads and walkways may be very difficult to navigate. Travel may be hazardous. Visibility may be suddenly reduced to near zero at times. Road closures are possible. Prolonged utility outages are possible. Significant property or tree damage is possible. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
winter storm
A major winter storm expected Sunday evening to Monday night. What: Possible snowfall amounts of 10 to 20 cm. Reduced visibility in heavy snow and blowing snow. Freezing rain is possible. When: Beginning Sunday evening through to Monday night. Additional information: A rapidly intensifying low pressure system is expected to track over the Great Lakes. Precipitation is expected to begin as freezing drizzle or light freezing rain before transitioning to ice pellets or snow Sunday night. Snow mixed with ice pellets and freezing rain at times is expected to change to snow Monday afternoon and end overnight. There remains some uncertainty regarding the track of the low pressure system and as a result exact precipitation amounts remain somewhat uncertain. ### Roads and walkways may be difficult to navigate. Visibility may be suddenly reduced to near zero at times. Road closures are possible. Local utility outages are possible. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
snow squall
A frontal snow squall is possible tonight. What: Near zero visibility at times in heavy snow and blowing snow. West winds gusting up to 70 km/h. When: Late this evening or overnight. Additional information: After a period of snowfall today, a strong cold front will pass through the region. This front will bring strong wind gusts and a possible frontal snow squall, briefly reducing visibility to near zero in heavy snow and blowing snow. ### Travel may be hazardous. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
snow squall
A frontal snow squall is expected. What: Near zero visibility at times in heavy snow and blowing snow. West winds gusting up to 70 km/h. When: This evening. Additional information: A strong cold front will pass through the region this evening. This front will bring strong wind gusts and a frontal snow squall, briefly reducing visibility to near zero in heavy snow and blowing snow. ### Visibility will likely be suddenly reduced to near zero at times. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
snow squall
### Visibility will likely be suddenly reduced to near zero at times. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.